Functions and features of the TN11SCC/TN51SCC/TN52SCC/TNK2SCC board Function and Feature Description Basic function Accomplishes the service grooming, configuration management and alarm output of a subrack. Supports the backup of the NE data. When the NE data changes, the real-time database backup function immediately saves the changed configuration data into the storage medium to ensure that no configuration data is lost after the NE is reset (cold) or powered off. This improves the reliability of the NE. Supports the function of the CF card to back up the database. The NE data (except NE IP, NE ID, Gateway ID, and Node ID) and the board software are backed up to the CF card. Backing up data to the CF means that you do not need to reconfigure the NE after replacing the SCC. DCN communication Supports interconnection and communication between NEs through IP over DCC, OSI over DCC, or HWECC. Active/Standby backup Supports active/standby backup: There are two SCCs in the system that can provide 1+1 hot backup. If the active board fails, the standby board automatically becomes active. Clock function Provides clock source for the system communications. Subrack cascading Supports subrack cascading. The SCC accomplishes different functions based on the mode (master or slave) of the subrack in which it is installed. The SCC in a slave subrack processes the overhead bytes, handles alarms and manages the configuration inside the subrack. The SCC in a master subrack performs the same functions as the SCC in the slave subrack, and also processes overhead bytes and handles the alarms of all its slave subracks. The SCC in the master subrack connects to the network management system (NM). The configuration commands are issued to the SCC of a slave subrack through the SCC in the master subrack. Optical-layer ASON Supported Electrical-layer ASON Supported Supports the backup of the NE data. When the NE data changes, the real-time database backup function immediately saves the changed configuration data into the storage medium to ensure that no configuration data is lost after the NE is reset (cold) or powered off. This improves the reliability of the NE. Supports the function of the CF card to back up the database. The NE data (except NE IP, NE ID, Gateway ID, and Node ID) and the board software are backed up to the CF card. Backing up data to the CF means that you do not need to reconfigure the NE after replacing the SCC. Supports interconnection and communication between NEs through IP over DCC, or HWECC Supports active/standby backup: There are two SCCs in the system that can provide 1+1 hot backup. If the active board fails, the standby board automatically becomes active.
